asyncrat | 4b4cc5eea7cfceea058932b2a5985f837eb198c0ca69002a7b8b5b7130de204f

General

Target

JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe
Size

569KB
MD5

1612db4c5d73a7abac6ccf990f115d38
SHA1

6c1480c1ee68d4eea0df24310bd95871b59e51c7
SHA256

4b4cc5eea7cfceea058932b2a5985f837eb198c0ca69002a7b8b5b7130de204f
SHA512

21fab0609e3925fa6f428fc56fd22ada47a0db5d369f3c80b6357b037d55ae82c3fa562e2367d5f252f3cc55feb62cd1ac7a2e0646940d546b7b602a86049689
SSDEEP

6144:PC4w8juap56y9dg4sIo9ZCf6YRZDYooV3FtlyPG4wYeVKiEgQaratgMl:Knapvg4sz9dYRZsx1tvpEVar3Ml

Score

10^/10

asyncrat 1 discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

1

C2

185.157.160.136:1973

Mutex

df4Rtg34dFjwr7ujp3

Attributes

delay
38
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\mk = "C:\\Users\\Admin\\AppData\\Roaming\\gh\\hn.exe"	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2780	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	31
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32
PID 1660 wrote to memory of 2804	1660	JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1612db4c5d73a7abac6ccf990f115d38.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2804-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2804-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2804-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2804-9-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2804-10-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2804-11-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-12-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads